1 : 1
1 : 2
2 : 3
1 : 3
Carbon dioxide
Sulphur dioxide
Ammonia
Hydrogen
adrenalin
glucagon
epinephrin
thyroxin
Law of Multiple Proportions
Law of Definite Proportions
Law of Conservation of Mass
Law of Reciprocal Proportions
Cataphoresis
Osmosis
Dehydration
Diffusion
chlorine
carbon monoxide
sulphur dioxide
o-cresol
ethyl alcohol
chloroform
oxygen
methyl alcohol
acetone
ether
acetic acid
methyl salicylate
asphalt
naphtha
diesel oil
lubricating oil
tincture iodine
paints
ink
aerated water
German silver
solder
magnalium
bell metal
evaporation
sublimation
using a separating funnel
fractional distillation
Water
Alcohol
Carbon-di-sulphide
Sodium chloride solution
hydrochloric acid
ammonia
cane sugar
common salt
streptomycin
terramycin
aureomycin
codein
copper sulphate and water
copper sulphate, lime and water
thio-urea and lime
copper sulphate and thio-urea
glacial acetic acid
methanol
formic acid
stearic acid
an anaesthetic
a psychedelic drug
an antipyretic
an antibiotic
a very sweet smell
a very pungent smell
an irritating smell
no smell at all
carbon disulphide
carbon tetrachloride
phosgene
chloroform
cobalt
tin
manganese
platinum
rapid cooling
rapid heating
slow cooling
slow heating
quick lime
tincture iodine
rectified spirit
None of these
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
decomposition of petrol
fermentation of animal and plant waste
destructive distillation of coal
electrolysis of water
Goodyear
Wohler
Baeyer
Perkin
a congenital disease
a communicable disease
an acquired disease
a contagious disease
lead
chromium
zinc
tin
it is lighter than air
in the lower layers it becomes unstable
ultra-violet light is present only in the upper layers
it mixes freely with O2 in the upper layers